Cell Cycle Seen in Human Cancer Cells (IMAGE) Instituto Gulbenkian de Ciencia Caption The cell on the left, the middle one and the cell on the right are at different sages of mitosis (cell division): their duplicated chromosomes (in blue) align along the midline (cell on the left), and then are pulled towards the poles of the cell (middle and right-hand cell), by protein cables (in green). The top cell has finished mitosis and is entering gap phase G1, when centromeres are duplicated, as seen by newly made CENP-A (in red). Credit Mariana Silva & Lars Jansen, IGC Usage Restrictions Please credit Instituto Gulbenkian de Ciencia (2011). License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.